Go project autoreload on OS X. Replace 'your_go_app' with whatever your app name is You run develop.sh to have it watch the project folder and run rebuild when files change.

develop.sh

#!/bin/bash
fswatch ./ ./rebuild.sh 

rebuild.sh

#!/bin/bash          

killall your_go_app

tput setaf 1 # set color red
go install


if [[ $? != 0 ]]; then
  echo 'COMPILE ERROR'
else
  tput setaf 2 # set color green 
  echo 'reloading'
  gofmt -w *.go
  PORT=5000 your_go_app & 
fi

tput sgr0 # reset colors